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the suburban needs to be loud

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by muddysub, Dec 13, 2001.

  1. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    i want flow master 50s but would straight pipes be too loud on a daily driver?

    people that get good mileage aren't having any fun!
    scott,
    1989 GMC suburban 3/4t 4" lift finally rollin on 36" swampers, tbi350, th350, np241
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I personally don't like the sound of straight pipes...but I have had both 40 and 50 series Flowmasters (2 1/2" true duals both times) The 40's are a bit louder, but the 50's were nice and throaty/loud too. I used some 3 1/2" boom tube tips with my 50 series and it sounded great.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    I ran straight pipes on a Ford I once had. It was a long bed truck. I had short pieces of pipe to replace the glass packs so if I got caught, all I had to do was take the short pipes off and put the glass packs back in.

    At idle and coasting, the exhaust was pretty quiet. But when I romped on it, everything shook like an earthquake. [​IMG] It did sound "different", unlike any vehicle with mufflers or glass packs.

    It was all done for the fun of it. [​IMG] [​IMG] [​IMG]


    I'm not picking my nose...I'm just pointing at my brain!! [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  4. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    i've never heard my sub with straight pipes so i don't know how good or bad they sound.

    people that get good mileage aren't having any fun!
    scott,
    1989 GMC suburban 3/4t 4" lift finally rollin on 36" swampers, tbi350, th350, np241
     
  5. xnoahx

    xnoahx 1/2 ton status

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    I would avoid running straight pipes unless all you are going to do in your truck is idle because once you push on the gas it will sound terrible. Put some mufflers on it and enjoy the healthy sound

    My 73 K5 <a target="_blank" href=http://www.geocities.com/xk5blazerx/73k5.htm>http://www.geocities.com/xk5blazerx/73k5.htm</a> 350/TH350/NP203, Q-jet, Edelbrock intake, Vortec heads, 4" lift, and 36" TSL's
     
  6. Slayer

    Slayer 1/2 ton status

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    I'm currently running Flowmaster 50's and I like the throaty sound, plus it keeps the pohleece off my back. When I was running 40's, I just about ALWAYS attracted their attention. Straight pipes can get annoying, especially with a daily driver, and that will REALLY make you a known person to your local Johnny Laws. I'd go with the 50's.

    <font color=blue>I don't know everything, I just think that I do.............</font color=blue>[​IMG]
     
  7. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    I had a Warlock racing muffler on my S-10 Blazer, and every once in a while, I'd pull the plug and run straight pipes. It sounded VERY cool, but could get annoying. I never got pulled over, though. I've heard a 350 with straight pipes coming out of headers on my friends Chevelle. It sounded AWESOME. I'd do it, but it's just too freakin loud. I'd go with the 40's for volume while still being legal, the 50's for a mellow tone.

    Red 1989 GMC Suburban SLE V1500 - TBI 350, 700R4 w/ shift kit, Quad-shock front, 31/10.50/15 Pro Comp MT, 4.10 gears, Duals off cat
     
  8. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    P.S. DO NOT GET GLASSPACKS!! They suck! You lose low end torque, get the Flowmaster Delta Flows. Believe it or not, the 40 Delta Flow will make more power than running straight pipes.

    Red 1989 GMC Suburban SLE V1500 - TBI 350, 700R4 w/ shift kit, Quad-shock front, 31/10.50/15 Pro Comp MT, 4.10 gears, Duals off cat
     
  9. 87GMCJimmy

    87GMCJimmy 1/2 ton status

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    With striaght pipes you will loss all low end torque. By the time the engine gets to a RPM that it could benifit from straight pipes the cam, intake, and carb will be maxed out. Put a 40 or 50 series flowmaster on it and you'll be real happy. For a little better sound and power go will some headers and a high flow cat.
     
  10. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    FlowMaster 40s = link

    And for the BBC guys out there, I run these....
    FlowMaster 70s = <a target="_blank" href=http://store.summitracing.com/product.asp?d=8&amp;s=165&amp;p=3757&amp;SearchType=ECat>link</a>

    I love the 70s. They are just loud enough to NOT attract the WRONG kind of attention from the poh-leece. And I would stay away from the 40s, since the will prolly be a bit on the annoying side to deal with for anything longer than a short trip.

    Good luck on your chioce! And the response above about loosing power from the straight pipes is totally correct, since you are essentially eliminating all the back-pressure that your exhaust system needs to create to assist in making TORQUE.

    <font color=red>GOT MUD???</font color=red>
    My license plate reads:<font color=blue> 8 YR SUV</font color=blue>
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    454/TH400/NP205 - 14BFF/D60/w/ 4.10s
     
  11. Calclips

    Calclips 1/2 ton status

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    The best combo I've ever used is a series 40 flow with dumpoffs and no cat. It sounds good, and my truck is making more power now than it did with open headers (need the backpressure...) Plus, MPG has gone enough to pay for the work several times over.
     
  12. TwoCrowsDesign

    TwoCrowsDesign 1/2 ton status

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    OK so flowmaster has the market cornered, but I have a Ravin 33 on a 3" single tube and it sounds great, nice and loud. I can imagine how duals would sound, drool...

    John
     
  13. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    <blockquote><font class="small">In reply to:</font><hr>

    And I would stay away from the 40s, since the will prolly be a bit on the annoying side to deal with for anything longer than a short trip.

    <hr></blockquote>
    I have made a couple of long trips with the dual 40's, headers, no carpet etc. It was fine...honestly I don't think they're that loud. Then again the TSL's drown out the exhaust noise on the freeway...[​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  14. CaptCrunch

    CaptCrunch 1/2 ton status

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    Just a thought, but what motor do you have in your burb? Stock? You running headers? I have Flowmaster 40's off of the exhaust manifolds and it sounds mediocre at best. A weak motor through manifolds sounds awful. Headers would make a great addition. The 40's are a nice muffler, but I can't say the cash is worth it over some long glass packs. It's a tough call. My next set of muffs will be Ravens.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
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  15. Calclips

    Calclips 1/2 ton status

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    Anyone who takes "long glasspacks" over flows needs a lesson in what will last and what sounds good. Flowmasters are built tough and last forever. I live in Michigan and my flowmaster is 6 years old! Glasspacks rot away about once per year... add up 28 bucks for both glasspacks per year, multiply by 6 = 168 bucks. It comes pretty close in the end, and sounds powerful... not annoying
     
  16. muddin4fun

    muddin4fun 3/4 ton status

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    Please don't do straight pipes. There's folks here that run straight pipes and it's down right annoying [​IMG].

    You can't go wrong with 50 series flows. I love the sound of mine. Instead of being real loud, it's a low rumble. Nick drove it around my house and it vibrates the pictures on the walls, lol!
    Here's some <a target="_blank" href=http://www.bluefox.tv/~lara/video.html>video</a>
    it's headers with true dual 2 1/2" pipe.

    <font color=blue>What part of my brilliance do you not understand?</font color=blue>

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  17. CaptCrunch

    CaptCrunch 1/2 ton status

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    Well I think alot of poeple talk crap about glasspacks that shouldn't. Plus a good deal of the sound depends on the length, type of tip, and brand. I bet I could post sound wav's and people could tell which one was a flowmaster and which one is glasspacks. I have heard some really nice packs. Also in terms of wear. I have only run Thrush glasspacks in the past cause I think they are the best. The ones on my old truck lasted over 4 years and were still in great shape when I sold the truck. Glasspacks have come a long way since the old days when they would burn out and blow out. If you have emissions I still love the sounds of cats only. Nice and deep and mellow

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  18. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Been running glass packs on the '81 for about 5 years now. Never had a problem. If I go down the hill and over a couple blocks, I can go to Northern Auto and get them for $15 a pop.
    Cap't Crunch knows his $hit, he's taught me a few new things.

    <a target="_blank" href=http://new.wavlist.com/movies/031/ag-blow.wav>"I ain't nobody, dork."</a>
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  19. shoeless

    shoeless Registered Member

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    I love the sound of my '88 K5, with a stock motor. They guy that had my truck before me had it dualled out behind the cat. They did a GREAT job, everything they did has fallen off. So right now, my exhaust ends right after the cat. Sounds pretty good actually. The dumbfounded looks I get when I tell people about my exhaust(after they have commented on the decent sound) are great.

    Pretty cheap too....

    Shoeless
    '88 K5
     
  20. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    my truck has 2.5 or 3" single exhaust and i have a cat too would it sound ok with just the cat? but my motor is all stock and i have manifolds too. so even with a 50 or 40 series it wouldn't sound too good.

    people that get good mileage aren't having any fun!
    scott,
    1989 GMC suburban 3/4t 4" lift finally rollin on 36" swampers, tbi350, th350, np241
     

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